var currentGPOffset = 0;
var currentSessionOffset = 0;
var previousGPOffset = 0;
var now,nowfudge;

function QueryString(key) {
	var value = null;
	for (var i=0;i<QueryString.keys.length;i++) {
		if (QueryString.keys[i] == key) {
			value = QueryString.values[i];
			break;
		}
	}
	return value;
}

QueryString.keys = new Array();
QueryString.values = new Array();

function QueryString_Parse() {
	var query = window.location.search.substring(1);
	var pairs = query.split("&");
	for (var i=0;i<pairs.length;i++) {
		var pos = pairs[i].indexOf('=');
		if (pos >= 0) {
			var argname = pairs[i].substring(0,pos);
			var value = pairs[i].substring(pos+1);
			QueryString.keys[QueryString.keys.length] = argname;
			QueryString.values[QueryString.values.length] = value;
		}
	}
}

QueryString_Parse();	

function getNow() {
	now = new Date();
	if (QueryString("CURRENT_DATE") != null) {
		var querystring_current_date = unescape(QueryString("CURRENT_DATE").replace(/\+/g," ")) + " GMT";
		setInterval( "window.status = now.toUTCString()", 1000 );
		if (nowfudge == null) {
			nowfudge = now - new Date(querystring_current_date);
		}
		now.setTime(now.getTime() - nowfudge );
		now.setTime(now.getTime() + ((0 * 24 + 0) * 60 + 0) * 60 * 1000);
	}
}		

getNow();

function GPArrayItem(n, fn, id, c, t) {
	this.name = n;
	this.fullname = fn;
	this.sessions = new Array();
	this.id = id;
	this.country = c;
	this.offset = t;
	return this;
}

function GPSArrayItem(s, d, l, bGP) {
	this.session = s;
	this.start = new Date(d);
	this.end = new Date;
	this.end.setTime(this.start.getTime() + l * 60 * 1000);
	this.countdown = new Date(0);
	this.inProgress = false;
	this.isGP = bGP;
	return this;
}

function GPCurrent() {
	return new findGPCurrent();
}

function findGPCurrent() {
	var gp,s,gps,ss;
	var ret = this;
	
	for (; currentGPOffset < grand_prix.length; currentGPOffset++) {
		gp = grand_prix[currentGPOffset]
		gps = gp.sessions;
		ss = gps[gps.length-1];
		if (ss.end >= now)
			break;
		previousGPOffset = currentGPOffset;
		currentSessionOffset = 0;
	}

	for (; currentSessionOffset < gps.length; currentSessionOffset++) {
		s = gps[currentSessionOffset];
		if (s.start > now) {
			ret.inProgress = false;
			break;
		}
		else if (s.end >= now) {
			ret.inProgress = true;
			break;
		}
	}

	ret.name = gp.name;
	ret.fullname = gp.fullname;
	ret.id = gp.id;
	ret.offset = gp.offset;
	ret.session = s.session;
	ret.start = s.start;
	ret.end = s.end
	ret.isGP = s.isGP;
	ret.countdown = new Date(ss.start - now);
	return this;
}

var grand_prix = new Array();

grand_prix[0] = new GPArrayItem("Race1", "2006 World Model Cup", 751, "race1",180);
grand_prix[0].sessions = new Array(new GPSArrayItem("Race", "18 Mar 2007 9:30:00 GMT+8", 0, true));

grand_prix[1] = new GPArrayItem("Race2", "2006 World Model Cup", 752, "race2",480);
grand_prix[1].sessions = new Array(new GPSArrayItem("Race", "29 Apr 2007 9:30:00 GMT+8", 0, true));

grand_prix[2] = new GPArrayItem("Race3", "2006 World Model Cup", 753, "race3",660);
grand_prix[2].sessions = new Array(new GPSArrayItem("Race", "24 Jun 2007 9:30:00 GMT+8", 0, true));

grand_prix[3] = new GPArrayItem("Race4", "2006 World Model Cup", 754, "race4",480);
grand_prix[3].sessions = new Array(new GPSArrayItem("Race", "2 Sep 2006 9:30:00 GMT+8", 0, true));

grand_prix[4] = new GPArrayItem("Race4", "2006 World Model Cup", 755, "race4",120);
grand_prix[4].sessions = new Array(new GPSArrayItem("Race", "2 Sep 2007 9:30:00 GMT+8", 0, true));

grand_prix[5] = new GPArrayItem("Race5", "2006 World Model Cup", 756, "race5",120);
grand_prix[5].sessions = new Array(new GPSArrayItem("Race", "21 Oct 2007 9:30:00 GMT+8", 0, true));

grand_prix[6] = new GPArrayItem("Race5", "2006 World Model Cup", 757, "race6",120);
grand_prix[6].sessions = new Array(new GPSArrayItem("Race", "2 Dec 2007 9:30:00 GMT+8", 0, true));

function getClockPath(s) {
	if ( s == 10 )
		return "countdown/blank.gif";
	else
		return "countdown/" + s + ".gif";
}

function getClockImage(s) {
	var x;
	x = new Image();
	x.src = getClockPath(s);
	return x;
}
	
var clockImage = new Array();
for (i = 0; i <= 9; i++)
	clockImage[i] = getClockImage(i);

function getElement(o) {
	return MM_findObj(o);
	if (document.getElementById)
		return document.getElementById(o);
	else if (document.all)
		return document.all[o];
}

function setVisibility(o,b) {
	v = getElement(o);
	if ( v == null )
		return;
	v = v.style
	var s = (b)?"block":"none";
	if (v.display != s)
		v.display = s;
}

function setNumber(s,m) {
	setNumber2(s,m,11);
}

function setNumber2(s,m,nn) {
	var v,n,o,ss;
	for (n = 0; n < nn; n++) {
		o = s + n;
		v = getElement(o);
		if ( v == null )
			continue;
		v = v.style;
		ss = (n==m)?"inline":"none";
		if (v.display != ss)
			v.display = ss;
	}
}

var clockMode = 0;

function updateClock() {
	getNow();

	var gp = GPCurrent();	

	if (1 == 0) {
		setVisibility("endseason", false);
		setVisibility("countdown", true);
		clockMode = 3;
	} else {
		if (gp)	{
			if (!gp.inProgress) {
				var x, y, n;
				if (clockMode != 1) {
					n = "countdown/" + gp.name + ".gif";
					document.images.racepic.src = n
					setVisibility("endseason", false);
					setVisibility("countdown", true);
				}
				do {
					y = gp.countdown.getUTCSeconds();
					n = y % 10;
					setNumber( "cds1-", n );
					if ( n != 9 && clockMode == 1 ) break;
					n = Math.floor(y / 10);
					setNumber( "cds2-", n );
					if ( n != 5 && clockMode == 1 ) break;

					y = gp.countdown.getUTCMinutes();
					n = y % 10;
					setNumber( "cdm1-", n );
					if ( n != 9 && clockMode == 1 ) break;
					n = Math.floor(y / 10);
					setNumber( "cdm2-", n );
					if ( n != 5 && clockMode == 1 ) break;

					y = gp.countdown.getUTCHours();
					setNumber( "cdh1-", y % 10 );
					setNumber( "cdh2-", Math.floor(y / 10) );

					y = Math.floor(gp.countdown.getTime() / (24*3600000));
					n = y % 10;
					setNumber( "cdd1-", n );

					n = Math.floor(y / 10) % 10;
					//if (n == 0)	n = 10;
					setNumber( "cdd2-", n );

					n = Math.floor(y / 100);
					if (n == 0)	n = 10;
					setNumber( "cdd3-", n );
				} while(0);
				clockMode = 1;
			} else {
				if (clockMode != 2) {
					setVisibility("endseason", true);
					setVisibility("countdown", false);
				}
				clockMode = 2;
			}
		} else {	
			if (clockMode != 3) {
				setVisibility("endseason", true);
				setVisibility("countdown", false);
			}
			clockMode = 3;
		}
	}
	setTimeout("updateClock()", 1001 - (new Date()).getMilliseconds());
}

function getAlt(x) {
	var name = x;
	switch (name.charAt(0)) {
		case 'd':
			return 'days remaining';
			break;
		case 'h':
			return 'hours remaining';
			break;
		case 'm':
			return 'minutes remaining';
			break;
		case 's':
			return 'seconds remaining';
			break;
		default:
			return '';
	}
}

function cd_DrawNumber(s) {
	var x;
	for(x=0;x<11;x++)
		document.write( '<img style="display:' + (x==0?"inline":"none") + '" src="' + getClockPath(x) + '" width="11" height="27" alt="' + getAlt(s) + '" id="cd' + s + '-' + x + '"/>');
}